Feature:1. The exterior of the post converter is glossy, integrally formed without burrs, and the installation is glossy2. Use this five-pit adaptor for drilling, because the location is accurate and effortless3. Because the joint is very glossy and the product is lighter, very easy to install and easy to replace4. The alloy steel material is coated with anticorrosion paint, the exterior is not easy to wear and the service life is greatly improved5. Eliminate the dangerous temptation to remove the shank from the chuck and extend the drill bit to provide a full depth of cutSpecification:Item Type: Extension Rod ConverterProduct Material: Alloy SteelTotal Length: Approx. 22cm / 8.6in.Package List:1 x Rod